Akondi Vyas, Jewel A R, Vohnsen Brian
Opt Lett. 2014 Mar 15;39(6):1641-4. doi: 10.1364/OL.39.001641.
A digital phase-shifting (PS) point diffraction interferometer is demonstrated with a transmitting liquid crystal spatial light modulator. This novel wavefront sensor allows tunability in the choice of pinhole size and eliminates the need for mechanically moving parts to achieve PS. It is shown that this wavefront sensor is capable of sensing Zernike aberrations introduced with a deformable mirror. The results obtained are compared with those of a commercial Hartmann-Shack wavefront sensor.
利用透射式液晶空间光调制器演示了一种数字相移（PS）点衍射干涉仪。这种新型波前传感器在针孔尺寸选择上具有可调性，并且无需机械移动部件来实现相移。结果表明，这种波前传感器能够检测由可变形镜引入的泽尼克像差。将获得的结果与商用哈特曼 - 夏克波前传感器的结果进行了比较。
